Preexisting corneal astigmatism, present at the time of cataract surgery, is reviewed in detail throughout this article on its most important aspects such as occurrence rates, clinical relevance and current treatment options. Special emphasis is given to the latter aspect. Each method’s rationale, advantage and limitation ishigh lightened. Comparisons between treatment options, whenever possible, are also provided.

O astigmatismo corneano pré-existente, por ocasião da cirurgia de catarata, é detalhadamente revisado neste artigo sob aspectos tais como: ocorrência, relevância clínica com ênfase nas opções de tratamento atualmente disponíveis. Destacamos o embasamento teórico de cada método, bem como vantagens e limitações foram destacadas. Comparações entre as opções terapêuticas, sempre que possível, são apresentadas.

With the advance in Medicine that in the last decades has been stamped by the practice based on evidence, in which clinic decisions are guided by results of scientific studies and no more only by the experience and perception of renowned professionals, more interest has progressively been pointed out on behalf of institutions engaged in teaching and medical assistance, by encouraging the carring out of clinic studies (1) […].

OBJECTIVE: Comparison of the visual performance between patients with Tecnis® MF ZM900, Acrysof® Restor® SN60D3, Acrysof® SN60AT and Acrysof® SN60WF intraocular lenses. METHODS: This prospective comparative study included 142 eyes of 71 patients in Sao Paulo University. The ophthalmologic evaluation performed included near, intermediate and distance corrected and uncorrected visual acuity, contrast sensitivity measurement and wavefront analysis. The minimum follow-up was 6 months. RESULTS: The mean age of patients was 60.7±6.6years in the Tecnis®MF, 63.1±4.4 years in-group Restor® 63.7±4.2 years […]

PURPUSE: To determine the correlation between presbyopia and body mass index. METHODS: Cross-sectional study involving 1030 patients with visual acuity of 20/20 emmetropy, aged between 36-40 years, 51-55 years and 60-65 years, excluding patients with positive test cover, anisometropy with convergence insufficiency or high correlation convergence / accommodation. Assessment of body mass index of all patients, RESULTS: Cross-sectional study involving 1030 patients with visual acuity of 20/20 emmetropy, aged between 36-40 years, 51-55 years and 60-65 years, excluding patients with […]

OBJECTIVE: Primary open angle glaucoma is a neurodegenerative disease of the optic nerve that represents one of the main causes of blindness worldwide. Familial aspects have been implicated in the development of the disease and proved in several studies. In this article, we present a systematic review of works about primary open angle glaucoma and mitochondrial DNA and a statistic analyses under a scientometric insight. METHODS: Bibliographic research of the works on mitochondrial DNA and primary open angle glaucoma was […]

PURPOSE: To determine linear regression models between Alpins descriptive indices and Thibos astigmatic power vectors (APV), assessing the validity and strength of such correlations. METHODS: This case series prospectively assessed 62 eyes of 31 consecutive cataract patients with preoperative corneal astigmatism between 0.75 and 2.50 diopters in both eyes. Patients were randomly assorted among two phacoemulsification groups: one assigned to receive AcrySof®Toric intraocular lens (IOL) in both eyes and another assigned to have AcrySof Natural IOL associated with limbal relaxing […]

OBJETIVO: Estabelecer modelos de regressão linear entre os índices propostos por Alpins com os vetores astigmáticos de Thibos, avaliando a validade e a força dessas correlações. MÉTODOS: Série de casos na qual foram avaliados prospectivamente 62 olhos de 31 pacientes de catarata com astigmatismo corneano pré-operatório entre 0,75 e 2,50 dioptrias para ambos os olhos. Os pacientes foram aleatoriamente distribuídos entre 2 grupos: um submetido a implante de lente intraocular (LIO) AcrySof ToricTM em ambos os olhos e outro grupo, […]